Does anyone know if the Gamecube Keyboard Controller peripheral is usable on an American Gamecube? I read somewhere that it only works on Japanese imports, which would be a big letdown, but if not I think I will spend the money to buy one. Does anyone know?

I have two GameCube keyboards. One is the controller variety that I imported from Japan, and the other is an adapter for a PS/2 (The computer port, not the console) keyboard. Both adapters work fine in my US-region 'Cube and my Japanese Q. I've tried them in slots 2, 3 and 4 and it works in all of them. I guess I could try it in slot 1, but that's where PSO wants the controller, so I never really bothered with that.

The keyboard does look nice and it's the official keyboard too...but still a bit pricey. I wish I could find a good keyboard adapter from GC somewhere...most of the ones I've found are sold out everywhere especially in 2012.